Synthetic paper and method of manufacturing the same

ABSTRACT

Synthetic paper and a method of manufacturing the same are provided. The synthetic paper includes a paper body and a coffee ground layer disposed on at least one side of the paper body. The coffee ground layer is disposed on the paper body by using a coating solution via a coating printing process. The coating solution includes coffee pulp, a dispersant, an adhesive, and a colorant. The coffee pulp includes the recycled coffee grounds. Hereby, this configuration has the ability to recycle the wasted coffee grounds effectively and reduce the amount of the paper pulp.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims priority from Taiwan Patent Application No. 107113875, filed on Apr. 24, 2018, in the Taiwan Intellectual Property Office, the content of which is hereby incorporated by reference in its entirety for all purposes.

BACKGROUND OF THE INVENTION 1. Field of the Invention

The present invention relates to a technical field of paper manufacturing, more particularly to synthetic paper and a method of manufacturing the same using recycled coffee grounds.

2. Description of the Related Art

Various resources have been used greatly due to the advancement of society. What accompanies this phenomenon is severe resource depletion. As a result, the used waste should be reused effectively to reduce the use of natural resources.

In addition, modern demand for coffee has substantially increased. A cup of rich and aromatic ground coffee, either brewed on your own or bought from a convenient store or beverage shop, can not only enjoyably stimulate your sense of taste and taste buds, but also refresh you mind and provide you with a full day of vitality after you gently taste it. Nonetheless, coffee grounds are an inevitable result after coffee has been brewed. Some people thus reuse the coffee grounds for home maintenance, deodorization, composting, and even mix the coffee grounds in daily products.

For instance, some people enhance paper pulp with coffee grounds during a paper manufacturing process. However, the paper manufactured by the method may be too brittle due to the coffee grounds and may not have effective applications for everyday life.

Accordingly, through years of scrupulous researching, the inventor of the present invention has designed a synthetic paper and a method of manufacturing the same paper in an effort to tackle deficiencies in prior art and further to enhance their implementation and application in industries.

SUMMARY OF THE INVENTION

In view of the aforementioned conventional problem, the purpose of the present invention is to provide synthetic paper and a method of manufacturing the same in an attempt to solve the problem caused by the prior art.

According to the purpose, the present intervention provides synthetic paper which includes a paper body and at least one coffee ground layer, wherein the paper body is a sheet structure. The coffee ground layer is disposed on at least one side of the paper body by using a coating solution via a coating-printing process: the coating solution includes coffee pulp, a first dispersant, an adhesive, and a colorant; the coffee pulp includes recycled coffee grounds.

Preferably, the coffee pulp accounts for 26 to 30% weight percentage of the coating solution, the first dispersant accounts for 2 to 5% weight percentage of the coating solution, the adhesive accounts for 55 to 62% weight percentage of the coating solution, and the colorant accounts for 10 to 14% weight percentage of the coating solution.

Preferably, the coffee pulp accounts for 27 to 29% weight percentage of the coating solution, the first dispersant accounts for 2 to 4% weight percentage of the coating solution, the adhesive accounts for 59 to 62% weight percentage of the coating solution, and the colorant accounts for 9 to 11% weight percentage of the coating solution.

Preferably, the coffee pulp includes the coffee grounds and a second dispersant; the coffee grounds account for 61 to 64% weight percentage of the coffee pulp, and the second dispersant accounts for 36 to 39% weight percentage of the coffee pulp.

Preferably, the coating solution is disposed on the at least one side of the paper body via the coating-printing process, and then baked at 65 to 75° C. for 15 to 30 seconds to form the coffee ground layer.

According to the purpose, the present invention provides a method of manufacturing synthetic paper, including the following steps: providing a paper body; preparing a coating solution including coffee pulp, a first dispersant, an adhesive, and a colorant, and the coffee pulp including recycled coffee grounds; and disposing the coating solution on at least one side of the paper body via a coating-printing process, and forming a coffee ground layer on the at least one side.

Preferably, the coffee pulp accounts for 26 to 30% weight percentage of the coating solution, the first dispersant accounts for 2 to 5% weight percentage of the coating solution, the adhesive accounts for 55 to 62% weight percentage of the coating solution, and the colorant accounts for 10 to 14% weight percentage of the coating solution.

Preferably, the coffee pulp accounts for 27 to 29% weight percentage of the coating solution, the first dispersant accounts for 2 to 4% weight percentage of the coating solution, the adhesive accounts for 59 to 62% weight percentage of the coating solution, and the colorant accounts for 9 to 11% weight percentage of the coating solution.

Preferably, the coffee pulp includes the coffee grounds and a second dispersant; the coffee grounds account for 61 to 64%⁰ weight percentage of the coffee pulp, and the second dispersant accounts for 36 to 39% weight percentage of the coffee pulp.

Preferably, the coating solution is disposed on the at least one side of the paper body via the coating-printing process, and then baked at 65 to 75° C. for 15 to 30 seconds to form the coffee ground layer.

The technical features of the present invention is to be illustrated with the specific embodiments in detail below with reference to the accompanying drawings, so that those of ordinary skill in the art is able to readily understand the purposes, technical features, and advantages of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 depicts a structural schematic diagram of the synthetic paper of the present invention.

FIG. 2 depicts a first flow chart of the synthetic paper of the present invention.

FIG. 3 depicts a second flow chart of the synthetic paper of the present invention.

FIG. 4 depicts a structural schematic diagram of the synthetic paper according to the other embodiment of the present invention.

DESCRIPTION OF THE PREFERRED EMBODIMENTS

To facilitate the review of the technique characteristics, contents, advantages, and achievable effects of the present invention, the embodiments together with the drawings are described in detail as follows. However, the drawings are used only for the purpose of indicating and supporting the specification, which is not necessarily the real proportion and precise configuration after the implementation of the present invention. Therefore, the relations of the proportion and configuration of the attached drawings should not be interpreted to limit the actual scope of implementation of the present invention.

The embodiments of the synthetic paper and the method of manufacturing the same of the present disclosure are illustrated with reference to the related figures. For ease of understanding, the same elements in the following embodiments are explained in accordance with the same symbols.

Please refer to FIG. 1 and FIG. 2, which depict a structural schematic diagram of the synthetic paper of the present invention and a first flow chart of the synthetic paper of the present invention.

As shown, the synthetic paper 1 of the present invention includes a paper body 10 and at least one coffee ground layer 20. Wherein, the paper body 10 is a sheet structure made of a material such as paper pulp via a manufacturing process known to a person skilled in the art. The coffee ground layer 20 is disposed on at least one side of the paper body 10 by using a coating solution via a coating-printing process. As a result, the wasted coffee grounds may be reused effectively to reduce the amount of the paper pulp.

For instance, under the condition of the same or similar pounds, the synthetic paper 1 of the present invention may be effective in reducing the amount of the paper pulp compared to the paper manufactured by a conventional technique, as it can be replaced by a coffee ground layer 20 formed by coffee grounds.

Wherein, the coating solution is obtained through mixing coffee pulp, a first dispersant, an adhesive, and a colorant, and the coffee pulp includes recycled coffee grounds.

It is worth mentioning that the manufacture of synthetic paper includes the following steps:

-   (S11) providing a paper body: -   (S12) preparing a coating solution including coffee pulp, a first     dispersant, an adhesive, and a colorant, and the coffee pulp     including recycled coffee grounds: -   (S13) disposing the coating solution on at least one side of the     paper body via a coating-printing process; and -   (S14) baking at 65 to 75° C. for 15 to 30 seconds to form the coffee     ground layer.

Incidentally, a coating-printing apparatus conventionally used by those skilled in the art may be selected for the coating-printing process. It is also preferable to use a coating-printing apparatus with a predetermined configuration. In addition, the coating-printing process and the subsequent baking process may also be integrated into a coating-printing apparatus, for instance, directly proceeding to baking after coating and printing.

Please refer to FIG. 3, which depicts a second flow chart of the synthetic paper of the present invention. FIG. 3 mainly illustrates the preparation of the coating solution.

In the process of preparing the coating solution, the recycled coffee grounds are mixed with the second dispersant to obtain coffee pulp. Then, the coffee pulp, the first dispersant, the adhesive, and the colorant are mixed and stirred into a coating solution.

That is, the preparation of the coating solution includes the following steps:

-   (S21) mixing the coffee grounds with the second dispersant to obtain     the coffee pulp; -   (S22) providing a first dispersant, an adhesive, and a colorant; and -   (S23) mixing the coffee pulp, the first dispersant, the adhesive,     and the colorant to obtain a coating solution.

It should be specified that the coffee pulp accounts for 26 to 30% weight percentage of the coating solution, the first dispersant accounts for 2 to 5% weight percentage of the coating solution, the adhesive accounts for 55 to 62% weight percentage of the coating solution, and the colorant accounts for 10 to 14% weight percentage of the coating solution.

Preferably, the coffee pulp accounts for 27 to 29% weight percentage of the coating solution, the first dispersant accounts for 2 to 4% weight percentage of the coating solution, the adhesive accounts for 59 to 62% weight percentage of the coating solution, and the colorant accounts for 9 to 11% weight percentage of the coating solution.

In terms of the coffee pulp, the coffee grounds account for 61 to 64% weight percentage of the coffee pulp, and the second dispersant accounts for 36 to 39% weight percentage of the coffee pulp.

Wherein, the first dispersant and the second dispersant may be the same or different dispersant.

Wherein, the coffee grounds in the coffee pulp may be recycled and then ground to a predetermined mesh number. The predetermined mesh number may be further adjusted according to actual application and shall not be described again. The coffee grounds may be further mixed with the dispersant. The dispersant added to the coffee pulp and the dispersant added to the coating solution may be the dispersant known to those skilled in the art, such as inorganic dispersant, for instance, hexamtaphosphate, sodium pyrophosphate, and the like; organic micromolecule dispersant, for instance, polyethene, polypropylene, polystyrene, and the like; and macromolecule dispersant, for instance, sodium polyacrylate, polyvinyl alcohol, polyethylene glycol, and the like.

In addition, the adhesives, for example, may be resistance resin, polyvinyl ester, and the like, and the colorant may be selected according to actual application; for example, a white colorant may be selected for a white paper body.

With the coating solution by the preparation as mentioned above, the problem of the synthetic paper being too brittle to be bent may not arise after forming a coffee ground layer on the paper body.

Please refer to FIG. 4, which depicts a structural schematic diagram of the synthetic paper according to the other embodiment of the present invention. This embodiment mainly explains that the coffee ground layer 20 can be disposed on both sides of the paper body 10 via a coating-printing process by using a coating solution.

Advantages of the present invention are to be further described below by way of comparative examples.

Comparative example 1, applied to notebook paper (Size: 21×15 cm):

132 gsm of wood free paper each peace about 4.16 g; 132 gsm of the synthetic paper each peace about 4.16 g, wherein of the present invention the paper body is about 3.16 g and the coffee ground layer is about 1 g. As known from the above, about 1 g of the paper pulp may be saved per piece, and for 70 pieces of paper of a notebook, 70 g of the paper pulp may be saved. Wherein, a piece of 132 gsm of wood free paper has a carbon emission of 0.00475 kg, yet a piece of 132 gsm of the synthetic paper of the present invention has a carbon emission of 0.00388 kg. Therefore, approximately 0.0609 kg (0.00499−0.00388=0.00087, 0.00087×70) of the carbon emission may be saved per notebook.

Comparative example 2, applied to a food box for predetermined food:

295 gsm of a food package board each piece about 17.25 g; 280 gsm of the synthetic paper each peace about 17.25 g, wherein of the present invention the paper body is about 16 g and the coffee ground layer is about 1.25 g.

Comparative Example 3, applied to a large handbag:

140 gsm of kraft paper each piece about 66 g; 120 gsm of the synthetic paper each peace about 66 g, wherein of the present invention the paper body is about 56 g and the coffee ground layer is about 8 g.

From the comparative examples as illustrated above, under the condition of the same or similar pounds, it is known that the synthetic paper of the present invention is indeed effective in reducing the amount of the paper pulp compared to the paper manufactured by a conventional technique, as it can be replaced by a coffee ground layer formed by coffee grounds.

The above description is merely illustrative rather than restrictive. Any spirit and scope without departing from the present invention as to equivalent modifications or alterations are intended to be included in the following claims. 

What is claimed is:
 1. Synthetic paper, comprising: a paper body which is a sheet structure; at least one coffee ground layer disposed on at least one side of the paper body by using a coating solution via a coating-printing process, the coating solution comprising coffee pulp, a first dispersant, an adhesive, and a colorant, and the coffee pulp comprising recycled coffee grounds.
 2. The synthetic paper according to claim 1, wherein the coffee pulp accounts for 26 to 30% weight percentage of the coating solution, the first dispersant accounts for 2 to 5% weight percentage of the coating solution, the adhesive accounts for 55 to 62% weight percentage of the coating solution, and the colorant accounts for 10 to 14% weight percentage of the coating solution.
 3. The synthetic paper according to claim 2, wherein the coffee pulp accounts for 27 to 29% weight percentage of the coating solution, the first dispersant accounts for 2 to 4% weight percentage of the coating solution, the adhesive accounts for 59 to 62% weight percentage of the coating solution, and the colorant accounts for 9 to 11% weight percentage of the coating solution.
 4. The synthetic paper according to claim 2, wherein the coffee pulp comprises the coffee grounds and a second dispersant; the coffee grounds account for 61 to 64% weight percentage of the coffee pulp, and the second dispersant accounts for 36 to 39% weight percentage of the coffee pulp.
 5. The synthetic paper according to claim 1, wherein the coating solution is disposed on the at least one side of the paper body via the coating-printing process, and then baked at 65 to 75° C. for 15 to 30 seconds to form the coffee ground layer.
 6. A method of manufacturing synthetic paper, comprising: providing a paper body: preparing a coating solution comprising coffee pulp, a first dispersant, an adhesive, and a colorant, and the coffee pulp comprising recycled coffee grounds; and disposing the coating solution on at least one side of the paper body via a coating-printing process so as to form a coffee ground layer on the at least one side.
 7. The method of manufacturing synthetic paper according to claim 6, wherein the coffee pulp accounts for 26 to 30% weight percentage of the coating solution, the first dispersant accounts for 2 to 5% weight percentage of the coating solution, the adhesive accounts for 55 to 62% weight percentage of the coating solution, and the colorant accounts for 10 to 14% weight percentage of the coating solution.
 8. The method of manufacturing synthetic paper according to claim 7, wherein the coffee pulp accounts for 27 to 29% weight percentage of the coating solution, the first dispersant accounts for 2 to 4% weight percentage of the coating solution, the adhesive accounts for 59 to 62% weight percentage of the coating solution, and the colorant accounts for 9 to 11% weight percentage of the coating solution.
 9. The synthetic paper according to claim 7, wherein the coffee pulp comprises the coffee grounds and a second dispersant: the coffee grounds account for 61 to 64% weight percentage of the coffee pulp, and the second dispersant accounts for 36 to 39% weight percentage of the coffee pulp.
 10. The synthetic paper according to claim 6, wherein the coating solution is disposed on the at least one side of the paper body via the coating-printing process, and then baked at 65 to 75° C. for 15 to 30 seconds to form the coffee ground layer. 